Discussion
The snowball garnet are the product of :
Answer: C
Snowball garnets are the product of Dynamothermal metamorphism.
Snowball (rotated) garnets contain spiral trails of inclusions, recording quartz or other grains that were overgrown while the garnet grew and rotated, or while the matrix foliation rotated around it, during deformation. They therefore need growth under elevated temperature during active deformation, which is syntectonic regional or dynamothermal metamorphism.
Dynamic and cataclastic metamorphism involve deformation with little heating, so new garnet does not grow. Plutonic metamorphism is high-temperature recrystallisation at depth without the shearing needed to make snowball structure.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development